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Dirt Bike Brands - Other
1986 XR250r - New to Me
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[QUOTE="euro gasgas, post: 1102985, member: 24923"] On that carb it isn't an air screw - it is a fuel screw; Looking at it from the bottom - yes lay on your back (just kidding). Clockwise goes in and gives you less fuel (leaner) while counterclockwise gives you more fuel (richer). The supertrapp might make it a little lean if you had 12 disks or more in it - but this wouldn't cause that big an issue at idle. BTW, baseline setting for your fuel screw is 1.5 turns "out". Clean the air filter and change the spark plug. My vote for root cause of your idle issue is a clogged pilot circuit in the carb. Remove carb and clean with carb cleaner and blow out with compressed air. jeff p.s. My playbike is a 2004 xr280 with ohlins forks and an ohlins shock, etc... [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1986 XR250r - New to Me
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